|
@@ -69,10 +69,9 @@ int finish_incremental_LSF(struct linear_fit_data *lsf) {
|
69
|
69
|
lsf->x2bar = lsf->x2bar / N - sq(lsf->xbar);
|
70
|
70
|
lsf->y2bar = lsf->y2bar / N - sq(lsf->ybar);
|
71
|
71
|
lsf->z2bar = lsf->z2bar / N - sq(lsf->zbar);
|
72
|
|
- lsf->xybar = lsf->xybar / N - sq(lsf->xbar);
|
73
|
|
- lsf->yzbar = lsf->yzbar / N - sq(lsf->ybar);
|
74
|
|
- lsf->xzbar = lsf->xzbar / N - sq(lsf->xbar);
|
75
|
|
-
|
|
72
|
+ lsf->xybar = lsf->xybar / N - lsf->xbar * lsf->ybar;
|
|
73
|
+ lsf->yzbar = lsf->yzbar / N - lsf->ybar * lsf->zbar;
|
|
74
|
+ lsf->xzbar = lsf->xzbar / N - lsf->xbar * lsf->zbar;
|
76
|
75
|
const float DD = lsf->x2bar * lsf->y2bar - sq(lsf->xybar);
|
77
|
76
|
if (fabs(DD) <= 1e-10 * (lsf->max_absx + lsf->max_absy))
|
78
|
77
|
return -1;
|